Emergency-brake-setting device.



, k v H h v rrlllilllgglllllflllli wi l Patented Oct. 29, 1912.

H. S. BEATTIE. EMERGENCY BRAKE SETTING DEVICE. I APPLICATION FILED JUNE 21 1910 3 WITNESSES:

HUGH SINCLAIR BEAT'IIE, OF TEZIUTLAN. MEXICO.

EMERGENCY'BRAKE-SETTING DEVICE.

Specification of Letters Patent.

PatentedOct. 29, 1912.

Application filed June 21. 1910. Serial No. 568.132.

To a]! whom. it may concern lie it known that. I. HUGH a resident of Teziut'lan, Puebla, Mexicodiave invented a new and Improved Emergencyllrake-Setting Device. of which the following is a full. clear, and exact description.

This invention relates to. a new and improved automatic device for settiiig the brakes on trains equipped with pneumatic brakes,.which will operate to set the brakes when the car is subjected to an abnormal jolts or jars. as by the wheels leaving; the tracks or by the breakage of one of thewhecls of one of the trucks.

An object of this invention is to provide a device which will be simple in construction. inexpensive to manufacture. strong. durable, readily accessible. and both positive and reliable in its operation.

A -'t'urther object of this invention is to. provide a control for the train pipe of an air brake system. which will be operative to automatically open the pipe to the atmosphere when the train on which the pipe is located is subjected to an abnormal jar or jolt.

These and further objects. together with the construction and combination of parts. will be more fully described hereiuat'te and particularly set forth in the claims.

Reference is to be had to the accompanyiug drawings forming a part of this specitication, in which similar characters of refercnce indicate correspondinn parts in all the views, and in which- Figure l is a fragmentary view in side elevation. showing my device attached to a vertical section and Fig. 3 is, a through the one car of a train; Fig. 2 is on the line 2---2 of. Fig. l longitudinal vertical section controlling valve.

Referring more particularly to the separate parts of the device, 1 indicates a car. which is supported. in the usual manneinby. a truck 2 having wheels 3. ()n this car is provided any usual air-brake system. indicatcd at 4. which has a train pipe .1

Located at any suitable point on the train pipe, and it desired. on each of the. cars. there is provided a suitable controlling valve (3. which is adapted to connect the interior of the. train pipe 5 with the atmosphere. so that the air pressure therein can be let out into the atnmsphere. This valve may be of any desired structure, and as seen by referl Sixcmni havingllnvr'ruc, a citizen of the United States, and I therein. The opening 9 l l l ence to Fig. 3. may consist of a union t a valve proper S with an opening t. is adapted to be brought into aliuement with the openings through the union and the train pipe and is also adapted to connect the interior of the t'ain pipe with an outlet 10. For the purpose of operating the valve 8, it is pro- 'vided with an arm or lever 11. which has adiustably secured thereto adjacent its outer end a wcwht 12. by any 's'uitablen eans. such as a set screw 13. The armll extends throuo'h a bracket 14, which is secured to the car in'any well known manner, as by being bolted to the trainpipe 5. The arm 11 is held in its'normal raised position corresponding to the position in which the outlet 10 closed by the valve 8, by means of a suitable projection 15. extending inwardly from the side of the bracket and preferably rounded in form so as to readily release the arm 11. The arm L1 is held in intimate contact with the projection 15 and further supported by means of a suitable spring 16, which is secured inany well known manner to the bracket it. The spring 16 and the projection 15 will hold the lever 11 in its raised position,

position in which the outlet is closed underall normal conditions. If, however, the wheels should leave the track or should break, the joltof the fall of the ar and the further jolt of the car in running over the ties would cause the weight 12 to force the lever down between the spring 16 and the pro ection 15, thus opemug the outlet- 10 and permitting the pressure in the pipe 5 to go out into the atmosphere, thus setting the brakes throughout the train almost instantaneously.

For the purpose of locking the lever 11 in its lowered position, and thus the valve 8 in its open position. so that the brakes will not be set and released by the constant jarring;- back and forth of the lever, the bracket it is provided with a suitable rack or ratchet 17, which will engage the lever and prevent its upward movement.

The adjustment of the weight- 12 permits the force which the spring it; has to resist to be varied according to the conditions d,esired, so that the d vice may be utade more or less sensitive.

It will thus be seen that a simple and e..i cient device is provided for automatically setting the brakes in case of an accident to and thus the valve 8 in the the car ortrucks, of which the engineer can have no possible knowledge.

While I have shown one embodiment of my invention, I do not wish to be limited to the specific details thereof, but desire to be protected in various changes, modifications and alte ations which I may make within the scope of the app'ended claims.

llaving thus described my invention, I claim as no and desire to secure by Letters Patent 1. The combination with a pneumatic brake system having a train pipe, of a valve for reducing the pressure in said train pipe, an-arm for operating said valve, ueans for normally holding said arm stationary, and means actuated by an abnormal jar for overcoming said first mentioned means and operating said arm.

2. The combination with a brake system, of a valve. for controlling the pressure in said system, an arm t'or operating said valve, a spring adapted tffhold said arm stationary under normal jars, and means for actuating said arm to escape said spring when said arm is subjected to abnormal jars.

3. The combination with a brake system having a train pipe, of a valve for controlling the pressure in said train pipe, an arm for operating said \alve. a bracket, a projection on said bracket adapted to engage said arm, means for cooperating with said projection, adapted to support said arm, and a Weight on said arm adapted to be operated by an abnormal jar to force said arm by said projection and said means. I

4. The COIl'lblDtltlUll with a brake system having a train pipe, of a valve for controling the pressure in said pipe, an arm operating by gravity for moving said valve to open position, and means for holding the arm in position to hold the valve in closed position and from which means the arm is adapted to be disengaged by an abnormal jar.

5. The combination with a brake system having train pipe of a valve for controlling the pressure in said pipe, an arm operating by gravlty tor moving saul valve to I and from which means the arm is a projection on said bracket for open position, means for holding the arm in position to hold the valve in closed position adapted to be disengaged by an almormal jar, and means for locking the arm in the position to which it moves when disengaged from its holding means.

6. The combination with a brake system having a train pipe, of a valve for controlling the pressure in said train pipe, an arm for operating said valve, a bracket, means for yieldingly holding said arm in a position corresponding to the closed position of said valve, means for locking said arm in a position corresponding to the open position of said valve, and a weight on said arm adapted to actuate said arm when subjected to abnormal jars.

7. The combination with a brake system having a train pipe, of a valve for controlling thepressure in for operating said valve, a bracket, means for yieldingly holding said arm in a position corresponding to the closed position of said valve, means tor locking said arm in a position corresponding to the open position of said valve, and adjustable means on said arm adapted to be actuated by abnormal jars and adapted to mani 'iulate said arm.

8. The combination with a brake system having a train pipe, of a valve for controlling the pressure in said train pipe, a bracket, an arm for operating said valve, extending in juxtaposition to said bracket, supporting said arm, a spring on said bracket adapted to cooperate with said projection to support said arm, an adjustable weight on said'arm, and a rack on said bracket adapted to maintain said arm in a position corresponding to the open position of said valve.

In testimony whereof I have signed my name to this s 'wcilication in the presence of two subscribing witnesses.

lIUGlI SINCLAIR BEATTIE.

\Vitnesses G. A. Gonna, A. Cox.

said train pipe, an arm 

